Projection slide carrier



w. wIiNDERIIo'LD. PRoIEcTIoN SLIDE. CARRIER.' APPLICATION FILED MAR.I2. 1918.

.JcgygoU Patented Feb. 28, 1922.

INVENTOR UNITED STATES PATENT OFFICE.

l'VVIII'JLIAMI WENDERI-IOLD, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, TO CRU PATENTS CORPORATION, A CORPORATION OF NEW' YORK.

Application led March 2, 1918.

To all wiz/0m t may concern:

Be it known that I, WILLIAM WENDER- HOLD, a citizen of the United States, residing at New York, in the county and State of New York,l have invented certain new and useful Improvements in Projection Slide Carriers, of which the following is a clear, full, and exact description.

My invention relates to an improvement in a holder for projecting slides and a carrier therefor.

The object of my invention is to provide a slide holder that is adjustable so that the picture can be brought into proper alignment horizontally and axially as the pictures on the slides are not always straight therein.

Referring to the drawings,

Fig. l. is a side elevation, partly in crosssection of my invention.

Fig. 2 is a top View of the device.

Fig. 3 is an end view.

Fig. 4f is a vertical cross-section of my device.

. As shown in Fig. l, the slidable member 2 is mounted in the main support l. This main support l is usually firmly held in the projection lantern. In the slidable member 2 is mounted the slide holder 3, which holder can be slightly revolved in the member 2 by means of the worm, which engages the worm sector 5, forming a part of the holder 3. The worm d is hollow and is operated by the knob 6. Through the worm 4 is loosely mounted the shaft which shaft is operated by the knob 8. Vorm 9 is fastened to shaft 7 operating theV second carrier 3X in the same manner as carrier 3 by means of a worm sector. The carriers 3 and 3X have a slotted opening in the center to receive the slide S. t

By pulling the slidable member 2 back and forth in the frame l, the slides are brought alternately into the light beams of a projection lantern. This operation is the same in the slide carriers heretofore known.

Specification of Letters Patent.

Patented Feb. 28, 1922.

Serial No. 220,091.

To adjust the exact position horizontally of the member 2 relative to member l, I pro vide adjustment or limit screws ll and 12, by means of which screws the amount of sliding allowed to member 2 is adjustably limited, since the shoulder (not shown) is larger than the slide opening in member l.

From the foregoing description it is easily seen that the position of a slide in this car` rier is controlled and operatable while a slide is being exhibited.

While I have shown and described a spe ciiic structure embodying the principles of my invention, I wish it to be understood that my invention in its -broad scope as defined by the claims is not to be limited or restricted thereto, as many changes in details of construction will readily appear to those skilled in the art without departing from the contemplated spirit and scope of my inf: vention.

What I claim as my invention is:

l. In a projection slide holder, a sup porting frame and a pair of slidable members cooperating therewith, slide carriers for each of said members, said carriers being provided with sectors, independent adjusting means for engaging said sectors to adjust the position of a slide in its carrier while the slide is being projected.

2. In a projection slide holder, a supporting frame and a pair of slidable members cooperating therewith, extensible adjusting means carried by said frame, a slide carrier for each of said slidable members, sectors on said carriers for engaging independent worms whereby the Vposition of each slide may be positioned at different angles while the slide is being exhibited.

Signed at the city, county and State of New York, this lst day of March, one thousandv nine hundred and eighteen.

WILLIAM WENDERHOLD. [L a] 

